[INFO] fetching crate through-stream 0.0.0...
[INFO] testing through-stream-0.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate through-stream 0.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate through-stream 0.0.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate through-stream 0.0.0
[INFO] finished tweaking crates.io crate through-stream 0.0.0
[INFO] tweaked toml for crates.io crate through-stream 0.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 480f0bd4a8012e5b796c79a34f0482ab0a4e9281b414a994d11206c96e90d6c8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "480f0bd4a8012e5b796c79a34f0482ab0a4e9281b414a994d11206c96e90d6c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "480f0bd4a8012e5b796c79a34f0482ab0a4e9281b414a994d11206c96e90d6c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "480f0bd4a8012e5b796c79a34f0482ab0a4e9281b414a994d11206c96e90d6c8", kill_on_drop: false }`
[INFO] [stdout] 480f0bd4a8012e5b796c79a34f0482ab0a4e9281b414a994d11206c96e90d6c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] defa2aaa7f963b85e4cea2c460e0f2d8b620e00c3c7dbf188da3c7d0223028d6
[INFO] running `Command { std: "docker" "start" "-a" "defa2aaa7f963b85e4cea2c460e0f2d8b620e00c3c7dbf188da3c7d0223028d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling through-stream v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "defa2aaa7f963b85e4cea2c460e0f2d8b620e00c3c7dbf188da3c7d0223028d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "defa2aaa7f963b85e4cea2c460e0f2d8b620e00c3c7dbf188da3c7d0223028d6", kill_on_drop: false }`
[INFO] [stdout] defa2aaa7f963b85e4cea2c460e0f2d8b620e00c3c7dbf188da3c7d0223028d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fdc885b2e4a08808e6743360e9aefb9aac90e3e3d3a2c476fb80c93a74f825b7
[INFO] running `Command { std: "docker" "start" "-a" "fdc885b2e4a08808e6743360e9aefb9aac90e3e3d3a2c476fb80c93a74f825b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling through-stream v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "fdc885b2e4a08808e6743360e9aefb9aac90e3e3d3a2c476fb80c93a74f825b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdc885b2e4a08808e6743360e9aefb9aac90e3e3d3a2c476fb80c93a74f825b7", kill_on_drop: false }`
[INFO] [stdout] fdc885b2e4a08808e6743360e9aefb9aac90e3e3d3a2c476fb80c93a74f825b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a4f3b41049b6ced0f8c2256821bc4bf95a2f271a6dfb6d4029c5fbe5002ae22d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a4f3b41049b6ced0f8c2256821bc4bf95a2f271a6dfb6d4029c5fbe5002ae22d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/through_stream-15da7e0fd7902191
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a4f3b41049b6ced0f8c2256821bc4bf95a2f271a6dfb6d4029c5fbe5002ae22d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4f3b41049b6ced0f8c2256821bc4bf95a2f271a6dfb6d4029c5fbe5002ae22d", kill_on_drop: false }`
[INFO] [stdout] a4f3b41049b6ced0f8c2256821bc4bf95a2f271a6dfb6d4029c5fbe5002ae22d